Baseball! Yet another way to review for the KCCT test
Question • The diagram below shows a simple food web. Which animal is classified as an omnivore? a. red fox b. deer c. black bear d. rabbit
Question The picture shows the circular path of a toy plane being swung around on a string. What path would the toy take if the string broke?
Question A ball is dropped into the still water of a child’s swimming pool. Which of the following describes the transfer of energy involved? • The gravitational potential energy will cause the ball to sink to the bottom with no movement of water. • Wave energy in the form of ripples will move in a circle around and away from the ball. • Kinetic energy will cause the ball to rise and fall with the waves until it moves to the side of the pool. D. The sound energy released from the ball will cause water to splash out of the pool.
Question Students in a science class placed ice cubes in a cup. They were studying variables that affect how long it takes the ice to melt. Select the variable that would most likely NOT affect the time it takes the ice to melt. 1. size of cup 2. size of the ice cube 3. number of students 4. temperature of the room
Question The atomic number of magnesium is 12. Its nucleus must contain A. 6 protons and 6 neutrons. • 4 protons and 8 neutrons. • 12 protons • 12 neutrons
Question A student added a small ball to a graduated cylinder containing 10 mL of water. • What is the volume of the ball? • 5 mL • 10 mL • 15 mL • 20 mL
Question Which of the following diagrams best represents the relationship between galaxies, the universe, and solar systems?
Question The terms gas exchange, diaphragm, and inhale are most closely associated with which system in the human body? • Circulatory • Digestive • Excretory • Respiratory
Question • Name two differences between plant and animal cells.
Question Which of the following statements is true about atoms? A. Atoms only vibrate in living things. B. Atoms vibrate only in living things and in once-living things. C. Atoms only vibrate in non-living things. D. All atoms in all substances vibrate.
Question • Name the three main parts of a cell.
Question • A can of regular soda and a can of diet soda were dropped into a bucket of water. The can of regular soda sank to the bottom but the diet soda floated. Which of the following statements best explains this observation? a. the can of regular soda is less dense than the can of diet soda b. The can of regular soda is more dense than the can of diet soda c. The can of regular soda has more volume than the can of diet soda. d. The can of regular soda has a small volume than the can of diet soda.
Question • Which of the following questions may best be answered by studying an organism’s chromosomes? • What sex is the organism? • Is the organism endangered? • Where is the organism’s ecosystem? • How does the organism obtain its food?
Question • A student holds a book at rest in an outstretched hand. The force exerted on the book by the student is equal to the book’s ______. a. Mass b. Weight c. Volume d. Density
Question • A ball is thrown straight up and then falls straight back down. When it attains maximum height, the ball’s velocity is ________________. • Equal to its displacement • Equal to its displacement divided by time • At its maximum • At its minimum
Question • A container of cold water is dumped into a larger container of hot water. It is mixed and then let alone for a long time interval. The water temperature is found to • Randomly vary from region to region in the container • Be uniform throughout the container • Fluctuate at all positions in the container • Be greater at the bottom of the container.
Question • Objects appear different in size and shape in a container of water due to • Refraction of the light waves • Interference of the water and light waves • Polarization of the light waves • Diffraction of the light waves
Question • Extremely high temperatures are needed for fusion reactors to function efficiently. What state of matter is most common at these temperatures? • Gas • Liquid • Solid • Plasma
Question • Which action will result in a product with new chemical properties? • Shredding a newspaper • Breaking a mirror • Cutting wood • Popping popcorn
Question At convergent plate boundaries of oceanic and continental crust A. oceanic crust is subducted. B. continental crust is subducted. C. oceanic crust is created. D. no associated volcanism occurs.
Question • Sterling silver is a combination of silver and copper. Which of the following is also a combination of two or more metals? • Aluminum • Lead • Gold • Brass
Question • All living things contain which element? • Helium • Sodium • Copper • Carbon
Question • A balloon has a negative charge. A glass rod has a positive charge. What will happen when the glass rod is brought near the balloon? • The balloon will be attracted to the rod. • The balloon will be repelled by the rod. • The balloon will remain in place. • The balloon will spin in circles.
Question A cup of water at 40oC and a cup of water at 5oC are left on a table. Which graph correctly shows the temperature of the two cups of water as time passes?
Question The praying mantis is a predatory insect that often eats moths. The graph below shows the relative numbers of two species of moths over 12 weeks after the introduction of the predatory praying mantis. What characteristics of this ecosystem is best indicated from this graph? A. Species B was preferred as food over species A. B. Species B may replace species A in this environment. C. Species B will reproduce more rapidly than species A. D. Species B was more abundant at the beginning of this time period than species A.
Question The bones of a whale flipper are similar to the bones of a bat wing as shown in the illustration below. • What does this similarity in bone structure suggest about the whale and the bat? • They use the same methods to travel. • They evolved from a common ancestor • They can migrate to the same locations • They can manipulate objects in the same way.
Question • Midocean ridges are usually found at • Convergent plates • Divergent plates • Plates sliding past one another • Hot spots
Question • A researcher found shark fossils on top of a mountain. This evidence suggest which of the following about this region? • It was once below a waterfall. • It was once part of a river bed. • It was once covered by an ocean. • It was once near a freshwater lake.
Question • From year to year, farmers rotate different crops in the fields to improve soil nutrients. Why is crop rotation also an effective pest management method? • It allows chemicals to kill more pests. • It creates crops that are pest resistant. • It interrupts the life cycles of pests. • It allows pests to overpopulate.
Question • Where is an igneous rock such as pumice most likely formed? • In a desert • In a creek bed • Near a volcano • Under a glacier
Question • Moving water was the most important factor in forming which of these? • The Grand Canyon • San Andreas Fault • The Rocky Mountains • Mount St. Helens volcano
Question • Which of the following questions is testable in a scientific investigation? • Are dogs better pets than cats? • Are dogs happy when they are walked? • Are cats more active at night than during the day? • Are cats easier to take care of than dogs?
Question • Where is most of the Earth’s water located? • Glaciers • Lakes • Oceans • Rivers
Question Transpiration is a vital part of the water cycle. It is a part of A. Condensation B. Precipitation C. Evaporation D. Collection
Question • Which of the following converts electrical energy into motion? • Light switch • Electric stove • Light bulb • Electric fan
Question • Which best describes a parallel circuit? • Electricity flows along one pathway. • The flow of electricity comes from one source. • Electricity flows along more than one pathway. • The flow of electricity comes from more than one source.
Question • A human male carries the sex chromosomes • XX • XY • YY • None of these
Question • Prokaryote cells have no nucleus. Which of the following is an example of a prokaryote cell? • Virus • Bacteria • White blood cell • Algae
Question The chart below shows a part of Mohs hardness scale for minerals. • A student is testing an unknown mineral for hardness. The unknown mineral is tested against fluorite, but neither mineral scratches the other. Which of the following conclusions can the student accurately make? • A, The unknown mineral and apatite will not scratch each other. • The unknown mineral and calcite will not scratch each other. • The unknown mineral will scratch apatite. • The unknown mineral will scratch calcite.
Question . The elements on the left hand side of the Periodic Table are A. metals. B. metalloids. C. non-metals. D. all gases.
Question To test a theory, Tommy set out two beakers in a room that measured 220o C. In one beaker he poured 50 mL of water at 100oC and in the other he poured 50 mL of water at 800o C. He hypothesized that in 24 hours the water at 800o C would be at 220o C, but the water at 100oC would have stayed the same. Which of the following is correct? A. Tommy was correct, one was at 100oC, the other was at 220o C. B. Tommy was wrong, both were at 220o C. C. Tommy was wrong, neither had changed. D. Tommy was wrong, one was at 220oC, the other was closer to 500o C.
Question The number of chromosomes in a sex cell is A. double the number of chromosomes found in body cells. B. triple the number of chromosomes found in body cells. C. one half the number of chromosomes found in body cells. D. one third the number of chromosomes found in body cells.
Question Which is NOT a characteristic of the modern atomic model? A. Electrons surround the nucleus. B. An atom is neutral. • The nucleus takes up most of the volume of the atom. D. The nucleus is positively charged.
Question Describe the energy transformations that occur in a portable CD player. A. nuclear to electrical to mechanical B. electrical to chemical to sound C. chemical to electrical to sound D. heat to electrical to sound
Question • A spring scale is pulled downwards and readings are recorded. If the spring is pulled 3.5 cm, the spring should read A. 12 N B. 13 N C. 14 N D. 15 N
Question • A force of 5 N is required to increase the speed of a box from a rate of 1m/s to 3 m/s over 5 s along a level surface. What change would most likely require additional force to produce the same results? • Reduce the mass of the box • Increase the mass of the box • Make the surface of the box smooth • Make the surface of the floor smooth
Question • What characteristic of motion could change without changing the velocity of the object? • The speed • The position • The direction • The acceleration
Question • In comparison of metals to nonmetals, metals tend to have • Lower melting points and greater conductivity than nonmetals. • Lower conductivity and lower density than nonmetals. • Higher density and lower melting points than nonmetals. • Greater conductivity and high melting points than nonmetals.
Question • Which of the following is found farthest from the center of an atom? • Nucleus • Proton • Neutron • electron